Deploy and Host Opik observability on Railway

Opik is an open-source LLM evaluation and observability platform for tracing prompts, models, agents, experiments, and feedback. This template deploys the full evaluation topology with a shared Basic Auth gateway and private data services.

About Hosting Opik

The template runs the Opik frontend, backend, and evaluator with MySQL, Redis, ClickHouse, ZooKeeper, and a Railway Bucket. First boot applies upstream migrations automatically. Railway generates the shared gateway password and every datastore credential.

This template is intentionally evaluation-only: Opik OSS has no native users, roles, or API keys, and its upstream Compose topology is not the recommended production deployment. Use the shared gateway only with trusted teammates.

Common Use Cases

Evaluate and compare LLM or agent runs
Inspect traces, spans, inputs, outputs, and feedback
Prototype an internal observability workflow before a production Opik design

Dependencies for Opik Hosting

Deployment Dependencies

MySQL for transactional metadata
ClickHouse and ZooKeeper for telemetry
Redis for queues, locks, and cache
A Railway Bucket for attachments and artifacts

Why Deploy Opik on Railway?

Railway creates the nine-resource graph, private networking, secrets, persistent storage, health checks, and one authenticated public endpoint from a single template.